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Mol Plant

Title:		Control of Bird Feeding Behavior by Tannin1 through Modulating the Biosynthesis of Polyphenols and Fatty Acid-Derived Volatiles in Sorghum
Author(s):		Xie P; Shi J; Tang S; Chen C; Khan A; Zhang F; Xiong Y; Li C; He W; Wang G; Lei F; Wu Y; Xie Q;
Address:		"State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, P. R. China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China. State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, P. R. China. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, P. R. China. School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P. R. China. State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, P. R. China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China. Electronic address: yrwu@genetics.ac.cn. State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, P. R. China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China. Electronic address: qxie@genetics.ac.cn"
Journal Title:		Mol Plant
Year:		2019
Volume:		20190923
Issue:		10
Page Number:		1315 - 1324
DOI:		10.1016/j.molp.2019.08.004
ISSN/ISBN:		1752-9867 (Electronic) 1674-2052 (Linking)
Abstract:		"Bird predation during seed maturation causes great loss to agricultural production. In this study, through GWAS analysis of a large-scale sorghum germplasm diversity panel, we identified that Tannin1, which encodes a WD40 protein functioning in the WD40/MYB/bHLH complex, controls bird feeding behavior in sorghum. Metabolic profiling analysis showed that a group of sorghum accessions preferred by birds contain mutated tan1-a/b alleles and accumulate significantly lower levels of anthocyanins and condensed tannin compounds. In contrast, a variety of aromatic and fatty acid-derived volatiles accumulate at significantly higher levels in these bird-preference accessions. We subsequently conducted both sparrow feeding and sparrow volatile attractant assays, which confirmed, respectively, the antifeedant and attractant functions of these differentially accumulated metabolites. In addition, the connection between the biosynthesis pathway of anthocyanin and proanthocyanidin and the pathway of fatty acid-derived volatile biosynthesis was demonstrated by discovering that Tannin1 complex modulates fatty acid biosynthesis by regulating the expression of SbGL2 in sorghum, thus affecting the accumulation of fatty acid-derived volatiles. Taken together, our study identified Tannin1 as the gene underlying the major locus controlling bird feeding behavior in sorghum, illustrating an example of the identification of an ecologically impactful molecular mechanism from field observation and providing significant insights into the chemistry of bird-plant ecological interactions"
Keywords:		Animals *Birds Fatty Acids/*chemistry *Feeding Behavior/drug effects Genome-Wide Association Study Plant Proteins/*metabolism Polyphenols/*biosynthesis Predatory Behavior/drug effects Sorghum/genetics/*metabolism Volatile Organic Compounds/chemistry/*meta;
Notes:		"MedlineXie, Peng Shi, Jiayang Tang, Sanyuan Chen, Chengxuan Khan, Aimal Zhang, Fengxia Xiong, Ying Li, Chao He, Wei Wang, Guodong Lei, Fumin Wu, Yaorong Xie, Qi eng Research Support, Non-U.S. Gov't England 2019/09/27 Mol Plant. 2019 Oct 7; 12(10):1315-1324. doi: 10.1016/j.molp.2019.08.004. Epub 2019 Sep 23"